Nobody likes to think that they could have a sexually transmitted infection, yet anyone who has ever had unprotected sexual contact (including, for example, oral sex) could be at risk.

Although many people don’t think they’ve got an STI, around 1-in-12 of those who get tested find that they are infected with an STI! This may sound surprising, but as some of the most common STIs (such as Chlamydia) often don’t show any signs, most people who have the infection wouldn’t even know.